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* [3.13] gh-118692: Avoid creating unnecessary StopIteration instances for ↵Miss Islington (bot)2024-05-241-6/+2
| | | | | | | | | | monitoring (GH-119216) (#119497) * gh-118692: Avoid creating unnecessary StopIteration instances for monitoring (GH-119216) (cherry picked from commit 6e9863d7a3516cc76d6ce13923b15620499f3855) --------- Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>
* gh-118414: Fix assertion in YIELD_VALUE when tracing lines or instrs (#118683)Tian Gao2024-05-071-1/+3
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* GH-115709: Invalidate executors when a local variable is changed via ↵Mark Shannon2024-05-061-0/+3
| | | | | frame.f_locals (#118639) Also fix unrelated assert in debug Tier2/JIT builds.
* GH-118095: Use broader specializations of CALL in tier 1, for better tier 2 ↵Mark Shannon2024-05-041-37/+104
| | | | | | | | | | support of calls. (GH-118322) * Add CALL_PY_GENERAL, CALL_BOUND_METHOD_GENERAL and call CALL_NON_PY_GENERAL specializations. * Remove CALL_PY_WITH_DEFAULTS specialization * Use CALL_NON_PY_GENERAL in more cases when otherwise failing to specialize
* GH-113464: Remove the extra jump via `_SIDE_EXIT` in `_EXIT_TRACE` (GH-118545)Mark Shannon2024-05-041-5/+1
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* gh-107674: Improve performance of `sys.settrace` (GH-117133)Tian Gao2024-05-031-16/+17
| | | | | | * Check tracing in RESUME_CHECK * Only change to RESUME_CHECK if not tracing
* GH-118095: Unify the behavior of tier 2 FOR_ITER branch micro-ops (GH-118420)Mark Shannon2024-05-021-3/+1
| | | | | | * Target _FOR_ITER_TIER_TWO at POP_TOP following the matching END_FOR * Modify _GUARD_NOT_EXHAUSTED_RANGE, _GUARD_NOT_EXHAUSTED_LIST and _GUARD_NOT_EXHAUSTED_TUPLE so that they also target the POP_TOP following the matching END_FOR
* GH-117442: Check eval-breaker at start (rather than end) of tier 2 loops ↵Mark Shannon2024-05-021-25/+13
| | | | (GH-118482)
* GH-118095: Make invalidating and clearing executors memory safe (GH-118459)Mark Shannon2024-05-011-3/+9
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* gh-118335: Configure Tier 2 interpreter at build time (#118339)Guido van Rossum2024-05-011-0/+6
| | | | | | | | | | | | | | | | | | | | | | The code for Tier 2 is now only compiled when configured with `--enable-experimental-jit[=yes|interpreter]`. We drop support for `PYTHON_UOPS` and -`Xuops`, but you can disable the interpreter or JIT at runtime by setting `PYTHON_JIT=0`. You can also build it without enabling it by default using `--enable-experimental-jit=yes-off`; enable with `PYTHON_JIT=1`. On Windows, the `build.bat` script supports `--experimental-jit`, `--experimental-jit-off`, `--experimental-interpreter`. In the C code, `_Py_JIT` is defined as before when the JIT is enabled; the new variable `_Py_TIER2` is defined when the JIT *or* the interpreter is enabled. It is actually a bitmask: 1: JIT; 2: default-off; 4: interpreter.
* gh-117657: Don't specialize RESUME_CHECK when specialization is disabled ↵Ken Jin2024-04-301-0/+2
| | | | (GH-118349)
* gh-117657: Fix small issues with instrumentation and TSAN (#118064)Dino Viehland2024-04-301-2/+2
| | | Small TSAN fixups for instrumentation
* GH-118095: Add tier 2 support for YIELD_VALUE (GH-118380)Mark Shannon2024-04-301-5/+11
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* GH-118095: Allow a variant of RESUME_CHECK in tier 2 (GH-118286)Mark Shannon2024-04-291-0/+23
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* GH-118095: Add dynamic exit support and FOR_ITER_GEN support to tier 2 ↵Mark Shannon2024-04-261-12/+48
| | | | (GH-118279)
* GH-118095: Handle `RETURN_GENERATOR` in tier 2 (GH-118180)Mark Shannon2024-04-251-17/+7
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* GH-115419: Move setting the instruction pointer to error exit stubs (GH-118088)Mark Shannon2024-04-241-1/+2
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* GH-118095: Convert DEOPT_IFs on likely side exits to EXIT_IFs (GH-118106)Mark Shannon2024-04-241-11/+11
| | | Covert DEOPT_IFs on likely side exits to EXIT_IFs
* GH-115480: Reduce guard strength for binary ops when type of one operand is ↵Mark Shannon2024-04-221-0/+16
| | | | known already (GH-118050)
* gh-112075: Make instance attributes stored in inline "dict" thread safe ↵Dino Viehland2024-04-221-8/+7
| | | | | (#114742) Make instance attributes stored in inline "dict" thread safe on free-threaded builds
* gh-116818: Make `sys.settrace`, `sys.setprofile`, and monitoring thread-safe ↵Dino Viehland2024-04-191-4/+13
| | | | | | | (#116775) Makes sys.settrace, sys.setprofile, and monitoring generally thread-safe. Mostly uses a stop-the-world approach and synchronization around the code object's _co_instrumentation_version. There may be a little bit of extra synchronization around the monitoring data that's required to be TSAN clean.
* GH-116202: Incorporate invalidation check into _START_EXECUTOR. (GH-118044)Mark Shannon2024-04-191-0/+1
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* gh-112075: Make _PyDict_LoadGlobal thread safe (#117529)Dino Viehland2024-04-041-1/+0
| | | Make _PyDict_LoadGlobal threadsafe
* gh-116968: Reimplement Tier 2 counters (#117144)Guido van Rossum2024-04-041-56/+45
| | | | | | | | | | | | Introduce a unified 16-bit backoff counter type (``_Py_BackoffCounter``), shared between the Tier 1 adaptive specializer and the Tier 2 optimizer. The API used for adaptive specialization counters is changed but the behavior is (supposed to be) identical. The behavior of the Tier 2 counters is changed: - There are no longer dynamic thresholds (we never varied these). - All counters now use the same exponential backoff. - The counter for ``JUMP_BACKWARD`` starts counting down from 16. - The ``temperature`` in side exits starts counting down from 64.
* gh-116168: Remove extra `_CHECK_STACK_SPACE` uops (#117242)Peter Lazorchak2024-04-031-0/+6
| | | This merges all `_CHECK_STACK_SPACE` uops in a trace into a single `_CHECK_STACK_SPACE_OPERAND` uop that checks whether there is enough stack space for all calls included in the entire trace.
* GH-115776: Embed the values array into the object, for "normal" Python ↵Mark Shannon2024-04-021-28/+24
| | | | objects. (GH-116115)
* gh-117323: Make `cell` thread-safe in free-threaded builds (#117330)Sam Gross2024-03-291-12/+8
| | | Use critical sections to lock around accesses to cell contents. The critical sections are no-ops in the default (with GIL) build.
* GH-116422: Tier2 hot/cold splitting (GH-116813)Mark Shannon2024-03-261-59/+80
| | | | | Splits the "cold" path, deopts and exits, from the "hot" path, reducing the size of most jitted instructions, at the cost of slower exits.
* GH-115802: Reduce the size of _INIT_CALL_PY_EXACT_ARGS. (GH-116856)Mark Shannon2024-03-151-8/+6
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* gh-116735: Use `MISSING` for `CALL` event if argument is absent (GH-116737)Tian Gao2024-03-151-1/+1
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* GH-116422: Modify a few uops so that they can be supported by tier 2 with ↵Mark Shannon2024-03-151-19/+15
| | | | hot/cold splitting (GH-116832)
* GH-116422: Factor out eval breaker checks at end of calls into its own ↵Mark Shannon2024-03-141-26/+74
| | | | micro-op. (GH-116817)
* gh-116760: Fix pystats for trace attempts (GH-116761)Michael Droettboom2024-03-131-1/+0
| | | | | | | | There are now at least two bytecodes that may attempt to optimize, JUMP_BACK, and more recently, COLD_EXIT. Only the JUMP_BACK was counting the attempt in the stats. This moves that counter to uop_optimize itself so it should always happen no matter where it is called from.
* gh-116626: Emit `CALL` events for all `INSTRUMENTED_CALL_FUNCTION_EX` ↵Tian Gao2024-03-131-14/+15
| | | | (GH-116627)
* GH-116468: Use constants instead of `oparg` in stack effects when `oparg` is ↵Mark Shannon2024-03-111-17/+13
| | | | known to be a constant. (GH-116469)
* GH-113710: Fix optimization of globals using `_CHECK_FUNCTION` (GH-116460)Mark Shannon2024-03-081-2/+3
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* gh-116381: Remove bad specializations, add fail stats (GH-116464)Ken Jin2024-03-071-28/+4
| | | * Remove bad specializations, add fail stats
* gh-116437: Use new C API PyDict_Pop() to simplify the code (GH-116438)Serhiy Storchaka2024-03-071-7/+7
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* gh-116381: Specialize CONTAINS_OP (GH-116385)Ken Jin2024-03-061-1/+63
| | | | | | | | | | | * Specialize CONTAINS_OP * 📜🤖 Added by blurb_it. * Add PyAPI_FUNC for JIT --------- Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* GH-113710: Tier 2 optimizer: check the function instead of checking globals. ↵Mark Shannon2024-03-061-6/+2
| | | | (GH-116410)
* GH-115685: Split `_TO_BOOL_ALWAYS_TRUE` into micro-ops (GH-116352)Mark Shannon2024-03-051-6/+7
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* gh-116098: Revert "gh-107674: Improve performance of `sys.settrace` ↵Tian Gao2024-03-011-17/+16
| | | | | | | (GH-114986)" (GH-116178) Revert "gh-107674: Improve performance of `sys.settrace` (GH-114986)" This reverts commit 0a61e237009bf6b833e13ac635299ee063377699.
* gh-115685: Type/values propagate for TO_BOOL in tier 2 (GH-115686)Ken Jin2024-02-291-0/+5
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* GH-115802: JIT "small" code for Windows (GH-115964)Brandt Bucher2024-02-291-4/+4
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* gh-107674: Improve performance of `sys.settrace` (GH-114986)Tian Gao2024-02-281-16/+17
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* gh-115778: Add `tierN` annotation for instruction definitions (#115815)Kirill Podoprigora2024-02-231-83/+35
| | | | | This replaces the old `TIER_{ONE,TWO}_ONLY` macros. Note that `specialized` implies `tier1`. Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
* GH-115651: Convert `LOAD_MODULE_ATTR` into `LOAD_INLINE_CONST` when the ↵Mark Shannon2024-02-221-2/+2
| | | | module is itself a constant. (GH-115711)
* gh-115733: Fix crash involving exhausted list iterator (#115740)Sam Gross2024-02-201-1/+2
| | | | | * gh-115733: Fix crash involving exhausted iterator * Add blurb
* gh-112175: Add `eval_breaker` to `PyThreadState` (#115194)Brett Simmers2024-02-201-4/+3
| | | | | | | | | | | This change adds an `eval_breaker` field to `PyThreadState`. The primary motivation is for performance in free-threaded builds: with thread-local eval breakers, we can stop a specific thread (e.g., for an async exception) without interrupting other threads. The source of truth for the global instrumentation version is stored in the `instrumentation_version` field in PyInterpreterState. Threads usually read the version from their local `eval_breaker`, where it continues to be colocated with the eval breaker bits.
* gh-115687: Split up guards from COMPARE_OP (GH-115688)Ken Jin2024-02-201-9/+12
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